package com.entity;





import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;

import java.io.Serializable;
import java.util.ArrayList;


@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
public class ServerResponse<T> implements Serializable {

    //"状态：0成功，1失败，2参数错误，10需要登陆")
    private int code;
    //返回信息
    private String msg;
    //返回数据
    private T data;

    private ServerResponse(int code) {
        this.code = code;
    }

    private ServerResponse(int code, T data) {
        this.code = code;
        this.data = data;
    }

    private ServerResponse(int code, String msg, T data) {
        this.code = code;
        this.msg = msg;
        this.data = data;
    }

    private ServerResponse(int code, String msg) {
        this.code = code;
        this.msg = msg;
    }

    @JsonIgnore
    //使之不在json序列化结果当中
    public boolean isSuccess() {
        return this.code == ResponseCode.SUCCESS.getCode();
    }

    public int getcode() {
        return code;
    }

    public T getData() {
        return data;
    }

    public String getMsg() {
        return msg;
    }


    public static <T> ServerResponse<T> createBySuccess() {
        T data = null;
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), data);
    }

    public static <T> ServerResponse<T> createBySuccessMessage(String msg) {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), msg);
    }

    public static <T> ServerResponse<T> createBySuccess(T data) {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), data);
    }

    public static <T> ServerResponse<T> createBySuccess(String msg, T data) {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), msg, data);
    }


    public static <T> ServerResponse<T> createByError() {
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(), ResponseCode.ERROR.getDesc());
    }


    public static <T> ServerResponse<T> createByErrorMessage(String errorMessage) {
        T data = (T) new ArrayList<>();
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(), errorMessage, data);
    }

    public static <T> ServerResponse<T> createByErrorCodeMessage(int errorCode, String errorMessage) {
        return new ServerResponse<T>(errorCode, errorMessage);
    }


}
